A practical protocol for large group oriented networks
EUROCRYPT '89 Proceedings of the workshop on the theory and application of cryptographic techniques on Advances in cryptology
How to withstand mobile virus attacks (extended abstract)
PODC '91 Proceedings of the tenth annual ACM symposium on Principles of distributed computing
How to share a function securely
STOC '94 Proceedings of the twenty-sixth annual ACM symposium on Theory of computing
Proactive public key and signature systems
Proceedings of the 4th ACM conference on Computer and communications security
Unleashing the killer app: digital strategies for market dominance
Unleashing the killer app: digital strategies for market dominance
Cryptographic Computation: Secure Faut-Tolerant Protocols and the Public-Key Model
CRYPTO '87 A Conference on the Theory and Applications of Cryptographic Techniques on Advances in Cryptology
Shared Generation of Authenticators and Signatures (Extended Abstract)
CRYPTO '91 Proceedings of the 11th Annual International Cryptology Conference on Advances in Cryptology
Certificate Recocation: Mechanics and Meaning
FC '98 Proceedings of the Second International Conference on Financial Cryptography
PKC '98 Proceedings of the First International Workshop on Practice and Theory in Public Key Cryptography: Public Key Cryptography
Optimal-resilience proactive public-key cryptosystems
FOCS '97 Proceedings of the 38th Annual Symposium on Foundations of Computer Science
Decentralized Trust Management
SP '96 Proceedings of the 1996 IEEE Symposium on Security and Privacy
A PVSS as Hard as Discrete Log and Shareholder Separability
PKC '01 Proceedings of the 4th International Workshop on Practice and Theory in Public Key Cryptography: Public Key Cryptography
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Business organizations are dynamic, thus they must have sufficient flexibility in expectation of future structural changes (change in personnel, policies, internal reorganizations, external restructuring, etc.). This issue is becoming increasingly important in recent years since nowadays firms operate in a more dynamic and flexible business environment. As automation progresses, it is expected that cryptography will become a major control tool in organizations. Here we discuss what cryptography can provide to enable and manage this business environment of mutating organizations. The main thesis we put forth is the following: "Cryptographic designs traditionally concerned with mechanistic fault tolerance, in which faults are dynamic can, in turn, be the base for a 'flexible design for control functions' in today's business environment." We show how combining various key management techniques which are robust against "dynamic faults" with proper semantically rich "enterprise view management techniques" - provides a flexible enterprise cryptographic control. Such control can anticipate dynamic changes of the business entity. We demonstrate how to manage group entities which are either visible externally (using modified certification technology) as well as entities whose internal workings are hidden (using certification technology and proactive protocol technology when extended to withstand failing and rejoining elements).